List of Ben 10 aliens

In the Ben 10 universe, the Omnitrix and its succeeding models possess the DNA of various alien races that the titular protagonist uses. Thus this not only lists the alien forms that Ben Tennyson and others assumes, but also the sapian races that the Omnitrix/Ultimatrix/Nemetrix/Hero Watch/Power Watch/Biomnitrix/Omnitrix Replica/Argitrix obtained a genetic blueprint from.

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Heatblast is a Pyronite from the star Pyros. Heatblast appears to be a magma-based lifeform whose body is composed of a bright inner magma body covered by a reddish-brown charcoal-like crust. Heatblast is essentially "living magma", thus everything he touches either melts or catches fire. His main weakness is lack of control over his fires and being extinguishable like a normal fire, and he emits light just like a normal fire.

Heatblast is Ben's first transformation, accidentally activated in the pilot episode of the original series, "And Then There Were 10" when Ben was trying to remove the Omnitrix immediately after it first attached to him. During the original series, when Ben caught a cold, it gave Heatblast cryokinetic powers (similar to Big Chill, its ultimate version and Arctiguana) instead of the normal pyrokinesis. This returned to normal once Ben got over his cold.

Ben later regained access to Heatblast in "Ben 10: Ultimate Alien" "Ben 10,000 Returns", and also as his 10-year-old self in "The Forge of Creation". Heatblast reappears through the Ultimatrix in "Viktor: The Spoils," when 16-year-old Ben uses him to defeat King Xarion, now in Dr. Viktor's body. He now has a darker skin tone and his eyes are not connected to the fire on his head, like Alan Albright (the Pyronite-hybrid Plumber's son). Heatblast retains this design in "Ben 10: Omniverse."

16-year-old Heatblast made his Omniverse debut in "A Jolt From the Past" to chase Corvo, while 11-year-old Heatblast made his Omniverse debut in "Trouble Helix" to fight Malware on Galvan B. In Omniverse, for both Bens, he looks similar to his appearance in Ultimate Alien. His eyes are once again connected to the fire on his head, his shoulder plates are slightly tilted up, and the 16-year-old Heatblast is taller and much more muscular. He wears the Omnitrix on his chest. In the reboot, his voice is very different than other incarnations, sounding like an arrogant teenager rather than the deep voice he had in previous incarnations. Also, the Omnitrix symbol is closer to his head, almost as if on his neck.

Charcoal Man is the Dimension 23 incarnation of Heatblast.

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Wildmutt/Wildpup is a Vulpimancer from the garbage planet Vulpin, and appears as a large dog-like creature with no visible eyes or tail. Without eyes, however, Vulpimancers use echolocation, a heightened sense of smell, and gills on their neck for thermography. However, a loud sound or a horrific smell can overwhelm them. According to various profiles on Wildmutt, the porcupine-like quills on his back supplement his sonar and can also serve as weapons, either protecting him while he's rolling, or as projectiles fired off at will. This ability is unique to adult Vulpimancers, and as Ben's version is only sixteen years old, these quills have not fully developed.

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